Combined type-writing and computing machine.



W. WRIGHT.

COMBINED TYPE wmnm; AND COMPUTING MACHINE.

APPHCATION FILED NOV.17|19H.

Patented Mar. 19, 1918.

5 SHEETS-SHEET I.

. W. WRIGHT.

COMBINED TYPE WRITING AND COMPUIING MACHINE.

APPLICATION FILED NOV-17. 19!]. 1,259,819. Patented Mar. 19. 1918.

5 SHEETS-SHEET 2- FIG. 2.

W. WRIGHT. COMBINED TYPE WRITH HG AND COMPUTING MACHINE.

APPLJCATION FILED NOV. ll. 19".

Patented Mar. 19, 1918.

5 SHEETS-SHEET 3- Qun NM .25 oo Mm EN m dc W. WRiGH'L' COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION HLED NOV. 17. Hill. '7 1,259,819. Patented Mar. 19, 1918.

5 SHEETS-SHEET 4.

FIG. I.

W. WRIGHT. COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION HLED NOV. 17. 1911- Patented Mar. 19, 1918.

5 SHEETS-SHEET 5.

Ewen/Z271? Wm WM? 7M5 Qifarmg? UN ITEDY STATES PATENT OFFICE.

columns or adding zones. .herein dlsclosed 1s animprovement upon;a 20 p WALTER WRIGHT, or, new YORK, NQY.

, ASSIGNOR Tb UNDERWOOD COMPUTING MACHINE COMPANY,OF NEW,YORK, N. Y., A CORPORATION OF NEW YORK.

comnn'rnn rrrE-wmrin'rh 11m) c omrurmo MACHINE.

Patented Mar. 19, 1918.

Application filed member 17, 1911. Serial No. 660,803.

' New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Combined Type-Writing and Computing Machines, of which the following is a specification. 1

This invention relates to combined typewriting and computing machines, and more particularly to a power-driven state control- Ier for conditioning the computing mechanism to add, subtract, or remain neutral, in a selective predetermined order, subject to the movement of the typewriter carriage, when numbers are being written in difl'erent rior application of Wnght and: Degener, *No..513,603, filed February 12, 1910,and my prior applications, Nos. 569,502, 574,813,

631,115 (new Patent No. 1,244,573), 652,153, and 658,119, filed June 29, 1910, Augustil, 1910, June 3, v1911, September 30, 1911 and I November 2, .1911, respectively.

In carrying out a complex computation with an Underwood-Wright combined typewriting and computingmachine, there is involved much work and thought, and there also exists the danger of errors incident to the shifting of computing heads fromone state of adding, subtractmg or neutral, to

another state; and one object therefore.- of

this invention is to provide improved means for effecting such shifting. v

The master wheel and the tens-carrying mechanism of each 1 computing head are usually provided with clutches,- shiftableto different positions corresponding to adding, subtracting and neutral or inactive.

'I employ setters for shifting the clutches in one direction, corresponding in this case to adding, and a series of tappets for different efi'ects, 'manipulable so as to be brought successively into co'iiperation with the shifting mechanism of the clutches, so as to return them or not as the case may be, to one or the other of their other positions corresponding to neutral or subtracting. The tappets may be interchangeable or reyersible to obtain different results.

The invention The change in state maybe accomplished at each new column of work, and said change of f state may advantageously be P brought about by ordinary tabulating or analogous stops, with the result that the set- -ting of such a tabulating stop automatically determines the changes. may be such that,as the master wheels and the'computing wheels come to an initial relative position at the beginning of each column, the computing heads maybe in dif- The connections 4 ferent states from the preceding column if? 1' desired. The above described-tappets may be settable to determine what shall be the state in the columns serz'atim while the stops ma. be settable to determine the size and location of the columns.

It is often desirable to return to some previous column for some purpose or other, such as correcting an error. Anotherob- *ject-therefor'e' of this: invention is to enable :the reversal of the controllin so as to bring the computing some previous state corresponding to a vi'ous column.

This may be accomplished manually by'a ads back to pre- .:'spe'cial key lever, which automatically 0011- meets the driving mechanismfor the state controlling mechanism to the source of power, but in a reverse direction to the-normal direction, so that it will be returned one g mechanism, .11

step at each actuation of the lever. Further,; Y

inasmuch as it is generally desired to return the typewriter carriage: to a particular previous column when apr'evious state of the computing heads is desired, means is provided for enabling the carriage, by a move-,

ment in a return direction, to cause, through the intermediary of connecting mechanism, 1 the drive of the state controlling mechanism, by the source of power. in a reverse direction to the. normal. also utilized to bring the controlling mechanism back to its initial position. before the beginning of each new line.

A further obiect of this invention is to This latter means is.

enable the typist to readilvascertain the particular state in the sequence of changes of the states of the computing heads at which said computing heads happen to be at any time. This is accomplished by pro- 1 viding the state controlling mechanism with; 1

an indicator which is movable concomitantly with the controlling mechanism to disclose the s'i'e ralfstopping r ositiens of lthescentrolling mechanism.

Other features and advantages will herein new appear.

In the accempanfvisg erewifigs,

Figure 1 is a ragmentary perspective view bringing diltthe' i'dati'te arrnflgenrfit of the cooperating parts of the improved 'in eh harfis'm tt'rld shvwifig the matinal key lever in its unactuated -pogition. Fig. 2 is a side view in elevation and i'partly inwectibn. K F ig 3 iswfraQnentery -front wievwin ele- {t wati'on, vpertly brokenr: away to show n the "underlying etract-one, and with 'pm'ts omitted 'for *the-sa-ke of simpl-ioiyty.

Y 5 Kiga i-"isa/diagranimetic'perspective View, showing the s'capement oontrol as actuated iloy ohe 'of thenumeralkeys.

f Figj 5- is a vertical seotion showing-the 'arrangement of one oi the -series "ottappts 1601' one of the controlling I mechanisms.

Figf fi -is a secti'onal view oi one ofiwthe comrioting h emls. v

Eig. 7- is a detaol'iedvpetspective viewvof ane of the tappts.

Fig- 8 is a vertical"seotiong showingwthe automatic clutch for eonneeting' the state controlling meehanism withthe powefi drive,

said clutch-being inits inactive on disconehected position.

Fig. 9 is a; view similai to eigiaehowhig 1 mins elements oftheoluteh connected soffas 5 to drive the contnollingnmeohanism from the son rce bf power.

Fig. 10 is a fragmentary viewg partlyiin section endpartly in elevmfiion';-- ahowing the 'Genevw driveofor roiiatimg'the' eontroi-aahaft hftenit has beenvdepressed to'its ldwenmnst position.

' Fig. :11 is a' diagra mmatic merspmbive viewwshewiog' *eertain mt the relemmts o'on- 4&'-'nected to who" ohi-tch in the po'siti om tidestratedoirr mgaet end witli the-.manualrrreverse keylever opemted to'reversesheflierecfioii of diive of' the control-"shaft.

'Fig.' 12 is a 'detmihed views sl'i'owi'ngjthe r-elative' reIa11ion' between 'the pint hf' the fleneva drive anelfiie cam, whereby the rotw tfon ef the' shaft is' obtainedg immediiate 'thedown an& mp smoke of the reciprooaifion Fig. :13-is a detail view',-' siiowih "the -im act'ivw iesiei'en bf -t'he"triggerw'h ph cenweets the lever'vviththe aisconneefing meehanlsm.

i keferri'ng'mere partieularly' tcr'the se e rate parts 0f fins-invention as embedibd in i -'i'he"femsHown 'in the drawin s, 1= indicates iettefkeys; and 2 indicates *ntmferal keys, "dvliich' are "secured, as is" customary in t'he 'UhderWo'od "typewriter," to key' levers 3, cs tv'hiclwesaate, thieugh zahe imemediam of c'ohnnnio column hkeysnl O lwhiichoare secured to levers 11,

bell cranks 4, type bars 5, so that the latter will swing rearwardly against the front side Aof a, p latnn' 6 mountedrto rotate on a carriage'7, which travels on one or more track rails'8 under the control of an escapelnent, "indicated in'generhl by the-numert1l9g which is actuated at each manipmlhtion of"- a character key, to feed the carriage 7 step-by-step 'a 'iettei space "in" a lttef-feecling direction. "The carriage 7 ma be also jumped from liy actuating-tabir-latiing which raise bars' 12 into the path of stops l3 adjustablyrsecwred*onuacnacln bar A l-:mrrid byrsaid carriage 7. .:The bars 12 qalso' a'ictzvin the nsualwmanner to ireleasewthe escapementomeohamism: 9; so. ttll'al).\bl'18 cervi'age T may itrarvelhfreelytuntil one oi the.

zstops lii is'caught byi one .ofirthe-hars 1-2.

L'Eaoh' ofwthe'nilmerakkeys 2121s will beeeen m'0re'clearlybyrrefenence to' Eig. lmay pull down on a link 15, which is secured-atom .nsoltiqafi when the: index: WhBGl'TGVOlVGS; said.

v projected I pin willnbes stopped. by a: detont wheelfQii; which is=secunedvta a' four-toothed .iescapem-entc Wheel .24. r This *meehanismu is .lmbrezfuilyl 'descnrhedrinisaid Jappli'catiem No. 164356113,

the extent of netatonoof azsh aft 25mm which othedndex wheelr22vis secured, rthe-rextent of rotation sasfthusfieternained being dependent ron theparticular numenal-wkey stru ck.

and'rthemimrprojeotingz determines:

) @hem aypment wheel-24 m normally-held I again'shrotatiom by one of a pair bide 3 26 mounted on aXBh a'ft'QT; which is rocked alck "andf'iflorth. 'at Yeaclr 'acbmatiomiof any o'firthe ":mumeraia keys; irn than mamner'i fl escribed'rcin said application No: 543,603, thmehy'releasing the index WiieelTQQ so: as topemnit the flotatiorr' ioi the shaft :25 aipredeterminecl amount', aecordingto the-particular 'pinuset up by the particulan "numeral: key.

which meshes" Witlr' a gear 29gishown'in fl'otted lines in' Fig. 2; on'the' she-R130. The sltafo wisfirox idleiwith a bevel gear 31, nieshing with a bevei' gear 32'on a2shaft-33. This shaft-33 11121 beimder constanttend- H ency= 'te turng and -for this purpose: may be driven 1 'by a 1 motor 34. through i the inter- -me'di'ary' of intermeshing bevel gears 35 and 86; the latter of which =is' secured to the lslizift '33. It vlrill "thus"be seen that' 'the "escapemen't'mechanism 'controlled"by the numeral keyfi 2 will ailse contfiol' the extent of I The shaft flfi is'provided with a pinion 28,

bevel gear 29 remains stationary, by reason gears facing in opposite directions, and loosely mounted on the shaft 41. lbevel gears, which are arranged in pairs, are

cal shaft 41.

of a slip-clutch not shown, but fully described in said application No. 543,603.

The bevel gear 29 meshes with a bevel gear 37 on a shaft 38, which drives, through intermeshing bevel gears 39 and 40, a verti- The vertical shaft 41 is arranged alongside of one or more computing heads 42 and 43, and is adapted to drive the master wheels of these computing heads one of which is indicated at 44 in Fig. 6. ach of these master wheels 44 is mounted on a shaft 45, so as to be driven thereby, and may also be splined on the shaft, so as to be capable of being reciprocated back and'forth to form the traveling element of the com puting head. In the latter event, the master Wheel will be brought successively into 00- Y operation with internal gears 46 formed by having inwardly projecting teeth of computing wheels 47 arranged in series, side by side. These computing wheels also have external teeth forming external gears, which mesh with gears 48 carrying dial wheels 49, adapted to exhibit, through an'aperture 50 in each computing head, the computation set up.

Each of the shafts 45 which drives a master wheel'is provided with a bevel gear, which is indicated in this case by the numerals 51 and 52. The bevel gears 51 and 52 are arranged to be driven in either direction by the appropriate one of pairs of bevel These indicated by the numerals 53, 54, 55 and 56.

In order to connect the gears 53 to 56 in drivin relation with the shaft 41, there are provi ed clutches 57 and 58, located between the members of each pair, and connected in driving relation with the shaft 41 by being splined thereon, so as to be shiftable to bring the teeth thereon into engage -m'ent with corresponding teeth on the in 'wardly facing sides of the pairs of bevel BHI'S.

To shift the clutches 57 and 58, they are each provided with a circular groove 59 in which engage pins 60 and 61 on shifting levers 62 and 63. The shifting levers 62 and 63 are pivotally mounted at 64 and three notches 66 engaged by latches 67. It will thus be seen that by individual shifting of the levers 62 and 63 that the state of each computing head, as far as the master wheel is concerned, can be individually changed.

carryin mechanism cooperating with each computing wheel 47, and brought into cooperation at each complete rotation of each ried by each computing wheel, so as to translate a complete rotation of each coniiputing wheel into a tenth of a revolution of the next higher computing wheel.

v 'enerally at 68 in Fig. 6, there being an e ement of this tens- -computing wheel by a special tooth 69 car- "go It is not necessary here to particularly at describe the exact operation 0 this tenscarryi'ng mechanism, as it forms in itself no part of this invention, and it is fully described in said above-mentioned application No. 543,603. It depends, however, for "9 0 its action on the rotation and direction of rotation of a rubber roller 70, which is driven in the case of each computin' head by bevel gears, indicated in Fig. 2 numerals 71 and 72. similar to the master wheel driving bevel gears, mesh with the members of pairs of oppositely facing bevel gears loosely mounty the These bevel gears, '55

ed on a shaft 73. These bevel gears, which P are loosely mounted on shaft 73, are indi-l'OO cated by the numerals 74, 75, 76 and 77. To connect either one of each pair in driving relation with the shaft 73", there are provided clutches 78 and 78', which are splined on to the shaft 73 and operable by supplementary levers 79 and 80, so as to bring the teeth of the clutches into engagement with corresponding teeth on the inwardly facing sides of the gears 74 to 77.

l The supplementary levers 79 and 80 are" pivotallv mounted on pins 81 secured to the levers 62 and 63, and are capable of a limited motion relative to these levers 62 and 63 determined by fingers 82 and 83 extending on opposite sides of the ivots 64 and" of the levers 62 and 63. his play between the main levers 62 and 63 and the supplementary levers 79 and is also taken up by springs 84 secured to the supplementary levers 79 and 80 and to the pins" 81. It will thus be seen that the levers 62 and 63 shift the clutches which control the drive of the master wheel and the tens-carrying mechanism of each computing head concomitantly, so that each computing headmay be rendered inactive or active and caused to add or subtract.

The shaft 73 is provided with a bevel gear 89, which meshes with a bevel gear on a shaft 91, which is driven from the foe which has a star wheel secured thereto. Secured on the shaft 112, there is provided a disk or collar 121, which has pivotally mounted thereon a latch 122, which, to-

-gether with the star wheel 120, forms elerelation with the spiral gear 113. The latch 122, which is pivotallv mounted at 123 on the disk 121, is provided with a tooth 124 normally'tending to engage between the teeth of the star wheel 120 by virtue of a spring 125 secured at one end to the disk 121 and at the other end to the latch 122. A disconnector 126, however, shown in the: form of a hook pivotally mounted intermediate its ends, tends to hold the latch 122 out of engagement with the star Wheel 12%,

by engaging a projecting lug 127 arrange on the opposite side of the pivot from the tooth 124.

In order to prevent the accidental rota-i tion of the shaft 112 with the spiral gear 113, when the elements of the automatic clutch are disconnected, the disk 121 is pro-' vided (Figs. 8 and 9) with a lug or extension 128, which is engaged by a springpressed detent 129. The lug 128 is so located:

1 that it will be engaged by the spring-pressed,

detent 129 when the disconnector engages the projecting lug 127 to interrupt the connection of the elements of the automatic clutch. The star wheel'120 limits the swing of the latch 122 in one direction, and a pin 1R0 limits its movement in the opposite di rection.

The rotation of the shaft 112, and thus of the cam 111, will provide for the reciprocas tion of the shaft 98. In order to obtain an' intermittent rotation of the shaft 98, the; shaft 112 is connected to a shaft 133 by a; Geneva drive, indicated at 134, and shown; to include a pin 135 secured on a disk 136 which in turn is secured to the shaft 112 and adapted torotate a slotted Geneva gear 137 a fraction of a revolution for every com v plete rotation of the shaft 112.

The shaft 133, to which the slotted Geneva gear 137 is secured, has loosely mounted thereon a pair of oppositely facing bevel gears 138 and 139, which mesh with, and are adapted to drive, a bevel gear 140 se.-, cured to the shaft 98. Either one of the bevel gears 138 and 139 are adapted to be brought into driving relatlon with the shaft 133, so as to determine the direction of rota-L tion of the shaft 98 by means of a clutch. 141, which is splined on the shaft 133, and, while normally held in clutch with the gear 139, is capable of being brought into clutch with the gear 138 in the manner to be described.

Means are rovided whereby after writing in the units position in any column the shaft 98 is shifted and turned with its tap pets, so that the tappets for the succeeding column will appropriately set the computing clutches 57 and 58. For this purpose there is provided a connection between the stops 13 carried by the carriage and the disconnector 126 of the clutch formed by the star Wheel 120 and the latch 122. This connection is through the intermediary of the lever 95, which control the step-by-step feed and return movement of the master wheels through the computing heads. For this purpose, the lever 95 is provided with a finger, 142, which is of such form and magnitude that it will engage, durin each return movement of the lever, a trigger 143 pivotally mounted at 144 on a bell crank 145. A spring 146 normally holds the shorter arm 147 of t e trigger 143 in engagement with a pin 148, but permits the tilting of the trigger 143 when the lever 95 moves step-bystep during the letter feeding movement of. the carriage, to feed the master wheels ste by-step through the computing heads, wit out rocking the bell crank 145.

Whenever a digit is written in the units place in any column, the lever 95 is drawn back by the spring 97 to engage the highest or left-hand computing wheel. This movement of the lever 95 in a return direction, under the impulse of the spring 97 will rotate the shaft 98 to bring the tappets 103 for the next column to efi'ective position. To do this it causes the finger 142 to engage the longer arm 149 of the trigger 143, so as to rock the bell crank lever against the tension of a spring 150. The downward movement of the longer arm of this bell crank lever 145 will cause a depression of a trip 151, which engages, at its lower end, the disconnector 126, and is adapted to actuate the same.

It is desirable to release the disconnector after it has once permitted the engagement of the latch 122 with the star wheel 120, so that after the shaft 112 has rotated one complete revolution, the disconnector 126 will automatically engage the lug 12'? and again 126, it is igs. 11 and 3) provided at its:

lower and engaging end with a snapper 153, which is shown in the form of a double bell crank lever pivotally mounted on the body portion of the trip 151, and normally held against a stop pin 154 by means of a spring 155, and in such a position that the lower notched end 156 thereof will tend to engage the disconnector 126.

so i

fit

v6 forms the snapper 153; enhg ei a t r oflj l 5 8 so that, during thedo Wn- Waiicl qioyement of the tri 151tt111s arm 15? V 1 58 'anzil'cliecon neot the notched endof; the; shipper from; the'disc'onnehtor 126. If the throw -pfl 15$, Which is' shownjjinithe form of an arin yere merely stationary, it "might .be posjrtlve' eno, gh, b'nt inasmuch as the 'rotatlon of the; Shelli: 112 and 'th 1as'th'ereturn of theflateh. 1%23'is very quick, it is desired to bare the" (hseonnect on of'the'snap ,er 13 from the cl'iseonnector .125 ah'solnte y pogitiye throwofill58 therefore is showntjin the tom Qlfigmi ar' seciiriecltp 'the sh's't'ft lOS, roel'is ,wit the rotat on of lth'e cam 1111 an helel et 2, sq't i t erhe a t .2 h bee ohceconneetecl in driving relation with, the source ofrnotive power, the arm 1 58" will; be til'ted upwardly, rogkiilg the snapper so a to positively 'cl'isenghge it from the (11sco'nnect'or 126. t m The above-mentioned connection the d r iyingjmecha'ni sm [for the state "controlling mechanism from the motoris the one neg many used in the cojitinnous letter feeding, operation of the machine, It is so etimes necessary; however; to return the computin, heedsto some previous state in order to correct an error or for some other purpose. In oi der to accomplish thisfreyersal," ,th'ere 'ie fr'evi d a an ally pera le r t rs? kf-y. ver' which. is"se llreslfqtaflrbc i eha hg filh 0 wh ch i ls l-l thiiifie ja a 1.163,,- which-its adapt d.. qle g e emm 16 i trr'j 151 :3116 dpresje said. .tr1p,-to,ftlij: on ..o hei i b m t r1and; permitivth cltltpl to' ether' or the star h el ;.12Qfai1d1he 1at 125. The rock shaft' 160, howe er; @3 15 P TQYiQQd With another arm "163;" yv ich: is cfohr'iectegl'hy rneans of a link'164 to an atu; abet; 5 splin'eol ontheshaft 10:8, so aisf r ockt ere'with, and yetvcapahlefof'rncivirfg al'o'ng'the' same. When the key; lever lfit) isactu ated, it will also brin the arm 0 the actuator 165 ahofve'a be1"cranjkle ef 166, Wl'llChillS slotted at one end, so as til en age a pin 167 on a elidable rod 168 The r'o 168 carries' ashifter 169'engaging iii? groove in the clutch'141, so that a'sthefshaft 108jis rocked, it willshift the clutch 14: 1 from engagement with the gear 139 into engagement with the gear 138, thus changing the direction of rotation of the shaft 98 when. driyen ,through the intermediary of the Geneva drive from theshaft'112'. be ,n'oteil at this point that the" I35. it) so positioned on th'e' olislg 136: with fes'pect toflth cam groov'eor the cam 11); thatihwill enga e the" entire gear: "fter s gl'id darn; has; rocked the shaft elw' i i h s ae m ewe mbs phitiiin wit the ra per -g g o eh'ga geinenfi with the pins on the shihtiri "le i el Itihl will; engage the threw-0'.

it will have the shaft 98 free'from uphn olf l After the pin 135 has]? downirnoveineiit. driven'th'Geheiia gear 137 so as to rotate the shift 98 a' fraction of arewjolution, bring ing"the"next get of tappets under the pints; on the 'e hl'fting levers, then that portion oil the chin groove of the earn 111 which changes trom the previously mentioned concentric porfiqniwjll actnatefthe follower, so; as'to rocilz 't ieshaft 108 in the opposite direc -f tion, to ret flrn the shaft '98 to" its uppermost-f pogrtion, Th is relativefarrangement ofthf cafii groove'and pin; 135 is shown in Fig. 12;

In yiew p'fthejact that'when, the carria ge' is, relight babk tobeg'inanerv line, the;

shi t f9jwitihit tappet should al'ym ati- (tally ret'nrh'to't 'e'position it occupied I to theflfirst column, and since, when it islde sirefi' tobring' the computing heads back to sorne p'rei'ions state corresponding to some: previor'ls column, it is also generally desirj ahleflto hring the' carriage and typewriting meelianistnwack to this column, there is a so provlded a control, for connecting the state controlling n'echahisrn with the power drife; whichl'ie oltlerhhle bythe stops carried by the carriage when said carriage moves in return directiottl For this purpose, the rhc'ltfshalft, 1601s provided with another arm; lmr if i b d5 y l -2 7 we ley erllfg pi'votallylmonhteglintermediate' ite ends,"as"at1'73,and atla' ted as be rocked by. h ls p 1 es hey, wa in em um' i e ti ri," gevey rrz leg 'oxzidedwithe tripe 1 74',\y11ich 1e pritdt ally mfihifte pn ilreleverg 72 1111 r ta n-a se t a ait %s p 7 Ema-em o r fig 1 5-;".$Q ;1 q be nlag pe ffi' d i t e prert teii'h he stops M 11?; e i r turn prism 1 h earr age anti. yetsp "aelt'o ro t against'jthe'tension of the sr'jring 176 wheh g the 'sto'p s' 13 pass alofi Withthe carriage'in zfiletter feeding (lire'c j tion." A sprin%177 ifproyidedfor return f ing the rock 5' ajft A60, alrd the parts con ne'cte'tl theret'o, thth'efir ndirmal osition:

In orcler'th'at" the typ-i'st may aecertfejii readilylin what particular column the corn trolling rriechanism'for' the state .of the com puting heads is acting, the shaft'98 is eog vided with an indicator shown in the form of a] cylindrical dial 178 having nlifnhers' ranging from 1 up. Located in juxtaa" position tothis dial, and corresponding to; the initial position on each holder, thereis prhyidefd a pointer 17 9, which will designate a rtid'ufl'ar numeral on the dial; 'corre sfiondingto column which'i's' being com piite'cl'bj th'coxnputing hea'd. l

.Ie i tepe a n pf the, e e, e" car ria 7 may be jumped by theitabulatin I 3? 1 N i Q 1? w l mn t pel et-her- 6311i 1i, are traveling eleihemsof t are a most is located beneath either or both of a computing heads, which in this instance are shown to be the master wheel, will be moved step by step, through the intermediary of the lever 95, concomitantly with the move; ment of the carriage 7, and, at the end of (the column, will be swung back to begin a new column by the spring 97 swinging the lever 95 back.

Instead of having the operator shift the computing heads individually for the dif- ,ferent states which it might be desired to have them act under in the different columns, the lever 95 will, on its return motion, engage the trigger 143, over which it slipped inefi'ectively during its step-by-step motion, so as to rock the bell crank 145' and a ing the tappets out of engagement with the be driven from the motor 34. As the shaft 112 rotates, it will first rock the arm 109, so as to turn the shaft 108, whereby the arm 107 will shift the shaft 98 downwardly to the bottom of its full stroke, thus bringpins 101 and 102 on the shifting levers 62 and 63. After this has been accomplished, the cam 111 willrotate, without actuating, the follower arm 109, until the pin 135 has engaged the Geneva gear 137 and rotated of the gears, so thatneither the master the shaft 133 a fraction of a revolution, so that the shaft 98 will have been rotated through the intermediary of the clutch 141 and the bevel gears 139-and 140, so as to bring the shaft 98 to its next position, with or without new tappets below the pins 101 and 102. 3

After this has been accomplished, the cam 111 will again change, as 1t rotates, so as to rock the arm 109 and the shaft 108 backto its normal position, thus raising the shaft 98 to its highest extent. When the shaft 98 was swung down to its lowest point, the setters 99 and 100 swung the levers 62 and 63, through the intermediary of the pins 101 and 102, to their lowermost positions,

corresponding to the adding state of the computing heads. If, during the return up, ward stroke of the shaft 98, there should e i no-tappets beneath the pins 101 and 102,

the shifting levers would remain in their adding position and the computing heads for the next column would both be adding. If a tappet with the smallest end upperthe pins 101 and 102, then the corresponding shifting lever would be moved upwardly to an intermediate position in which the clutches would be disconnected from all Wheel nor the tens carrying mechanism would be active. Again, if a tappet with itslargest end uppermost is located beneath one or both of the pins 101 and 102, then the shifting levers and the clutches operated thereby would be swung to their subtracting position, whereby the com uting head controlled thereby would be su tract ing in the coming column.

It will be seen that as soon as the shaft. 112, and thus the cam 111, has made one complete revolution, then the disconnector 126 will engage the extension 127, to oper-H atively disconnect the shaft 112 from the, spiral gear 113, by virtue of the fact that the snapper 153 has been positively disengagcd from the disconnector 126 by the throw-off arm 158, which has been raised when the shaft 108 was rocked. The detent 129 will have caught the disk 121, and thus the shaft 112, as soon as the disconnector" 126 has broken the connection between the shaft 112 and the spiral gear 113. The} operation of shifting the controlling mecha? nism for the computing heads, so as to bring the controlling mechanism in the next step which may correspond to different states 0 the computing heads, will be repeated every time the lever 95 is returned to bring the master wheels to their initial positions in the computing heads, that is to say it will occur each time one of the stops 13, cor-- responding to a new column, brings the carriage to a new column and brings the movable element of the computing heads to the start of a new column.

If it is desired to bring the computinghead back to some previous state, corresponding to some previous column, the reverse key lever 159 may be depressed, whereby the trip 151 will be depressed, through the intermediary ofthe rock shaft 160 and the arm 161, so that the trip 151 will throw off the disconnector 126, permit-,, ting the clutching together of the shaft 112;, and the spiral gear 113, so as to drive the cam 111 and the shaft 133. At the same time, the arm 163 will be rocked, so as to bring the actuator 165 above the bell crank lever 166, whereby when the cam 111 rocks the shaft 108, it will at the same time shift the'clutch 141 into engagement with the gear 138, so as to reverse the direction of drive of the shaft 98 by the shaft 133. Each actuation of the reverse key lever 159 willthus bring the controlling mechanism carried by the shaft 98 back one step, so that by any desired number of actuations of the reversing lever 159, the controlling mechanism can be shifted back to any previous step.

In case it is necessary to bring the carriage back to a position corresponding to a particular column, the controlling mechanism will be concomitantly brought back, so as to bring the computing mechanism into a state, corresponding to that in which it was when the column was first written, by the lever 172 being actuated by the stops 13 winch correspsnd m the special co'himns, s

thettheshaft '160 Will be rocked, enabling" as c6interrtrpt the control 'of the state'of the" f cdfnputi'frg heztdsFfroin the-carriage, the orig; gei"143can: be thi'cwnfro'm thep'osition in di fitd' infFig 1 ti) the position indicated iniFigl 13, Whe're the shorter arml lFwil'lf' be upperm0stj,b 1t' will' not project high i1'en0ilg h fer "the"fihg' r '142 to come into girgeme v therewith, .t o rock the "bel-lf "crank 1 The'spring: 146shi-fts' to oppbsite' sides of' the ivot' 144, and icoiip'erates with the pin 148t0 iibld the'trigg'er 143i11 either position #3 Ofi ndjustmfit.

Crtain featuresof the invention herein; set forth are disclosed and broadly clziimed in" one 01' more of the aifove-mentioned co en'dfn ,apmi amns-Nos: 545,603; 569-;5102; 31!" 5745813, 531,115, 652,153 and 658,119, my which the inventibn" herein disclosed and claimed is an improvement. Applicatip'rf' nisfn fdfcontib lling thed res cf'fqtatieh st o'f 'thefcijifip'ut'ing wheels? pplievaition N6. segjsfleisbbws a pbwer drivenrotary state?- csfitronr: 6r cnnfditiiiniirgf the computing, simian-sin t'b'fadd, ubtract 01" remain n'e'ixtrill, ins redterminedmder;themdvement off the" sta'te; ;ontroi1sr'-being; s'libj set to the Ifibvefiie'nt o'f'a't p-ewri't'er carriage. Appli cdt'lohNb. 574381 :sho'w'samnchinecompris iii'g'ftaliulatorsteps, and" a; lever controlled initsmevem'ent byfsaidstbps fbrprodu-cing; 4*5 relfeitit' ei movement between the computing;

Wheels and their common actuatcr, Applifcation" Nb. 631,115" shows: a lverfontranse flitting ,motibn: fi'mn the tabulator stops ti) the:cb'mpu ting;mecli nism, said ;leve'r have yoke at its" fnrward en'd" providing means fer conne'etion with themo'vable' membars of two computing'heads; Application Nb; 652,153 shows a state-controller Whichniayfbe aiitematically operated inaccordance' 35 with the-movement of the carriage. Appli- (fs'l'tibii' N0. 658,119slidws a rbt'ary state-centroller provided with setters and-adjustable ta'ppetsitli'e cohtiqllef'lifein'g manna-11y; opersteel instead-i ofbeing puwemdrixen The '63 clgfi'fiis in? case args' estrictsd tbi patent me snlijeetimattertwhichisjnotdiscidsedin any o'fitlie abnvs mentisned' mpendin-g appiicettien I v-iaih'tinns'mw-be resorted is; within the scope of the invention andfipertions=o {thre improvements may be used Without othersz Havingthns describedmy invention, 1- clelim:

1. The combination with a computinghead having atraveliin g element, of an *oscillating lever forcontrelling the positional? said traveling element, a spring-fer said lever; contrcllingimechanism for governing the state of said bumpu'tin g head, and means" operated by said lever to cause the actuation cf said continuing mechanism 2; The combination with one or mereconvpntingheads; ofbont-Mllingmechhnism few geverning'the state, or character of 'work 'of said computing heads stepby-step accord ing-*to a predetermined pining and 2mind-i cater for'shbwing what particular step said compntingdieads 'are aeting in 'et 1 any par ticular time.

3*. Theeombine-tionwith a typewriter'caw s5 riage, of 'one ormore "computing heads, COIP- trollingmechanism for governing the state of said computing"heads as to the charms-- ter ofWOtk carriedon thereby; mechanism including SEOPScaIIiedby Said*carriage for: determining" pnsitions thereof eflective as: computing zones, and mechanism movable interm'ittentl in" aiternatien' with move ments" of' sai'd carriage andcon'trolled bly" saidstop's'fbr' governingtliwactibn ofisarid" stete controlling mechanism.

4'. The combination-wither typewriter cem riege; of one 0r more 'cfimputing headsg con trcliing'mechanism fur *gwerning-tlrestate of-"seid compnting heads as to the character 10 of werlmsrriefl 011* thereby; and mechanism including ,stops carried by said carriage 61 initiating} periy'ds *of activity of said stateccntt'elling mechanism at predetermined paints'fin thewmvel of said carriage; said Stete cwontrollingmec'hanisnrincludingevplm ralit-y of thppets arranged to be brought successively -int'irindividual operatiena 5E The combinatibn with a'typewritel 'cm riage, ,of' one 0'!" more computing heads, con ticilliing' nie chri-nisli'r for governing-tire state of said cmnputing'heads' as to the charact'en OFWUI'H'CaITled" on thereby; and stops car=- ried by'said earrings for governing the ac tion of said controlling mechanism; saidi controlling mechanism including a" p111 rality of tiippets arranged to be brought successiveiy into individual operation; some of-sa'id tappets beingjspaced-apartfmm eacii. other greatendistancesth'an' others of said. tappets:

6. The dombinaitibn witlta typewriter car ria-ge'; of one= or more cmnputing Heads; contrblli ng-f mechanism fbr' governing; the state? of said computing heads as to'the; char -1 125 actermP'worle'caI-ried air'therelziy, and strips" carried? By Said carria e for governing the anti of said centfrell irfgz n'ree-limiisnm saziif controlling mechanism including a plurality of tappets arranged to be brought successively into individual operation; said tappets being interchangeable to vary the effect trolling mechanism including a plurality of tappets arranged to be brought successively into individual operation; said tappets being reversible to vary the effect of said controlling mechansm.

8. The combination with a typewriter carriage, of one or more computing heads, controlling mechanism for governing the state of said computing heads as to the character of work carried on thereby, and stops carried by said carriage for governing the action of said controlling mechanism; said stops being adjustable to vary the instant of actuation of said controlling mechanism.

9. The combination with a typewriter carriage, of one or more computing heads, controlling mechanism for governing the state of said computing heads as to the character of work carried on thereby, and stops carried by said carriage for governing the action of said controlling mechanism; said controlling mechanism including a plurality of tappets arranged to be brought succes sively into individual operation; said stops being adjustable to vary the instant of actuation of said controlling mechanism, and said tappets being adjustable to vary the effect of said controlling mechanism.

10. The combination with a carriage, of one or more computing heads, clutches for determining the character of action of said computing heads, and identical. stops carried by said carriage for variably and selectively causing the shifting of said clutches.

11. The combination with a carriage, of one or more computing heads, clutches for determining the character of action of said computing heads, and identical stops carried by said carriage orVariabIy and selectively causing the shifting of said clutches;

said stops beln adjustable on said carriage to vary the shi t of said clutches.

12. The combination with a carriage, of one or more computing heads, clutches for determining the character of action of said romputingheads, stops-carried by said carriage for timing the shifting of said clutches, and manual means enabling the shifting of said clutches.

13. The combination with a computing head, of a source of power for actuating said computin head, means operated by said source 0 power for controlling the state of said computing head as to the character of the work carried on thereby, a carriage, and means operated by said carriage at a predetermined point in its movement for setting said state-controlling means in action to efiect a change of state.

14. The combination with a computing head, of a source of power for actuating said computing head, means operated by said source of power for controlling the state of said computing head as to the character of the work carried on thereby, a carriage, a series of stops carried by said cari riage, and connections between said sto s and said first-mentioned means, where y the position of said carriage may control the actuation of said means.

15. The combination with a carriage, of

one or more computing heads, controlling mechanism for overning the state of said computing hea s, and means brought in play by the movement of said carriage, for causing the actuation of said controlling .mechanism; said means being ineffective during a movement of said carriage in one direction.

16. The combination with a computing I head, of a controlling mechanism for governing the state of said computing head, a source of power for actuatin said computing head, a typewriter carriage, a lever connected to said typewriter carriage,

adapted to move certain parts of said computing head concomitantly with the movement of said carriage, and connections whereby said source of power ma operate said controlling mechanism, sai tions being brought in play by said lever.

17. The combination with a typewriter carriage, of a computing head, means for actuating certain parts of said computing head from said typewriter carriage, a

connecsource of motive power for actuating said computing head, controlling mechanism for governinv the state of said computin head, and a trlp actuated by said means or enabling the connection of said controlling mechanism with said source of power.

18. The combination with one or more computing heads, of controlling mechan sm for governing the state of said computing heads, said controlling mechanism embodying a plurality of tappets, a source of power normally disconnected from said controlling mechanism, and means for eifecting state-determining operations of said statecontrolling mechanism by establishing temporary connections between said source of power and said controlling mechanism so as to bring said tappets successively into cooperation with said computing heads,

said temporarily connected parts being automati-calsly disconnected after each such state determining operation.

139. The combination with one or more computing heads, of controlling mechanism for governing the state of said computing heads, a source of power normally disconnected from said controlling mechanism, means for connecting said source of power to said controlling mechanism, whereby said controlling mechanism will be manipulated to bring said computing heads to different states according to a predetermined plan, and means for automatically disconnecting said controlling mechanism fromsaid source of power at the end of each state setting operation.

20. The combination with a typewriter carriage and one or more computing heads, of controlling mechanism for governing the state .of said computing heads, a source of power normally disconnected from said con trolling mechanism, means for connecting said source of power to said controlling mechanism, whereby said controlling mechanism will be manipulated to bring said computing heads to diflerent states accordmg to a predetermined plan, mechanism for varying the relative positions of certain parts of said computing heads in accordance with movements of said carriage, and connections between said last-mentioned mechanism and said connecting means,

whereby the latter will be controlled from the former.

21. The combination with one or more computing heads, of controlling mechanism for governing the state of said computing heads, a source of power normally disconnected from said controlling mechanism, means for connecting said source of power to said controlling mechanism, whereby said controlling mechanism will be manipulated to bring said computing heads to different states according to a predetermined plan, a typewriter carriage, and connections between said connecting means and said typewriter carriage, whereby said connecting means will be controlled from said typewriter carriage.

22. The combination with one or more computing heads, of controlling mechanism for governing the state of saidcomputing heads, a source of power normally disconnected from said controlling mechanism, a plurality of mechanisms each capable of efi'ecting a connection between said source of power and said controlling mechanism, whereby said controlling mechanism will be manipulated to bring said computing headsto different states according to a pre determined plan, and means controlled by operation of one of said connection-effecting mechanisms for reversing the direction of action of said controlling mechanism.

23. The combination with one or more measure Computing heads, of scntrolling mechan sm for governing the state of said computing heads, a source of power normally disconnected from said controlling mechanism, neans for connecting said source of power to said controlling mechanism, whereby said controlling mechanism will be manipulated .to bring said computing heads to different states according to a predetermined plan, and an indicator for exhibiting the position of said controlling mechanism.

24. The combination with one or more computing heads, of controlling mechanism for governing the state of said computing heads, a source of power, connections between said source of power and said controlling mechanism adapted to reciprocate said controlling mechanism, and connections between said source of power and said controlling mechanism adapted to rotate said controlling mechanism.

25. The combination with one or more computing heads, of controlling mechanism for governing the state of said computing heads, a source of power, connections be' tween said source of power and said controlling mechanism adapted' to reciprocate said controlling mechanism, connections between said sonrce of power and said controlling mechanism adapted to rotate said controlling mechanism, and means for reversing the direction of rotation of said controlling mechanism.

26. The combination with one or more computing heads, of a controlling mechanism for gorernin the state of said computing heads, a reciprocating shaft forming part of said controlling mechanism and rotatable to be efiective to govern, a source of power, and a cam operated by said source of power for reciprocating said shaft.

27. The combination with one or more computing heads, of acontnolling mechanism for governing the state of said computing heads, a source of power, a cam operated by said source of power for reciprocating said controlling mechanism, and a clutch for connecting said cam to said source of power.

28. The combination with one or more computing heads, of a controlling mechanism for governing the state of said computing heads, a source of power, a cam operated by said source of power for reciprocating said controlling mechanism, and a clutch for connecting said cam to said source of power; said clutch normally tending to connect said cam in driving relation with said source of power,

29. The combination with one or more computing heads, of a controlling mechanism for governing the state of said computing heads, a source of power, a cam operated by said source of power for reciprocating said' controlling mechanism, a

clutch for connecting said cam to said source of power; said clutch normally tending to connect said cam in driving relation with said source of power, and a disconnector for throwing the elements of said clutch out of driving connection with each other.

30. The combination with one or more computing heads, of a controlling mechanism for governing the state of said computin heads, a source of power, a cam operate by said source of power for reciprocating said controlling mechanism, a clutch for connecting said cam to said source of power; said clutch normally tending to connect said cam in driving relation with said source of power, and a disconnector for throwing the elements of said clutch out of driving connection with each other once in each revolution of said cam.

31. The combination with one or more computing heads, of a controlling mechanism for governing the state of said computing heads, a source of power, acam operated by said Source of power for reciprocating said controlling mechanism, a clutch for connecting said cam to said source of power; said clutch normally tending to connect said cam in driving relation with said source of power, a disconnector for throwing theelements of said clutch out of driving connection with each other, and a trip for releasing said disconnector.

32. The combination with one or more computing heads, of a controlling mechanism for governing the state of said computing heads, a source of power, a cam operated by said source of power for reciprocating said controlling mechanism, a clutch for connecting said cam to said source of power; said clutch normally tending to connect said cam in driving relation with said source of power, a disconnector for throwing the elements of said clutch out of driving connection with each other, a trip for releasing said disconnector, and means for disconnecting said trip from said disconnector after having once actuated the same.

33. The combination with one or more computing heads, of a controlling mechanism for governing the state of said computing heads, a source of power, a cam operated bv said source of power for reciprocating said controlling mechanism, a clutch for connecting said cam to said source of power; said clutch normallv tending to connect said cam in driving relation with said source of power, a disconncctor for throw ing the elements of said clutch out of driving connection with each other. a trip for releasing said dis onncctor. and a member actuating certain parts of said computing heads and also actuating said trip.

34. The combination with one or more computing heads, of a controlling mechn nism for governing the state of said com puting heads, a source of power, a cam operated by said source of power for reciprocating said controlling mechanism, a clutch for connecting said cam to said source of power; said clutch normally tending to connect said cam in driving relation with said source of power, a disconnector for throwing the elements of said clutch out of dri\'- ing connection with each other, a trip for releasing said disconnector, a member for actuating certain parts of said computing heads and also actuating said trip, a lever interposed between said trip and said morn her, and a trigger carried by said lever ar ranged So as to be engaged by said member during a movement thereof in one direction to rock said lever.

35. The combination with one or more computing heads, of a controlling mechanism for governing the state of said computing heads, a source of power, a cam 0perated by said source of power for reciprocating said controlling mechanism, a clutch for connectin said cam to said source of power; said 0 utch normally tending to connect said cam in driving relation with said source of power, a disconnector for throw ing the elements of said clutch out of driving connection with each other, a trip for releasing said disconnector, a member for actuating certain parts of said computing heads and also actuating said trip, a lever interposed between said trip and said memher, a trigger carried by said lever arran ed so as to be engaged by vsaid member during a movement thereof in one direction to rock said lever, and a spring for permitting the movement of said trigger without a move ment of said lever during a movement of said lever in the opposite direction.

36. The combination with one or more computing heads, of a controlling mechanism for governing the state of said computing heads, a source of power. a cam operated by said source of power for reciprocating said controlling mechanism. a clutch for connecting said cam to said source of power; said clutch normallv tending to con nect said cam in driving relation with said source of power, a disconnector for throw ing the elements of said clutch out of drivng connection with each other, a trip for re leasing said disconnector, a member for ac tuating certain parts of said computing heads and also actuating said trip. a lever interposed between said trip and said menu bar. and a trigger carried by said lever arranged so as to be engaged by said member during a movement thereof in one direction to rock said lever; said trigger being mow able to a position out of cooperation with aid member.

37. The combination with one or more computing heads, of a controlling mechanism for governing the state of said computing heads, means for actuating Said controlling mechanism, a reversing mechanism adapted to be operated by a part of said actuating means, means for inciting said first mentioned means to actuate said controlling mechanism in one direction, and means for inciting said first-mentioned means to cooperate with said reversing mechanism to actuate said controlling mechanism in the opposite direction.

38. The combination with one or more computing heads, of controlling mechanism for governing the state of said computing heads, a typewriter carriage, actuating mechanism for rotating said controlling mechanism during the movement of sai carriage in one direction, and additional mechanism, including an automatic reversing device, to co'c perate with parts of said actuating mechanism for rotating said controlling mechanism during the movement of said carriage in the opposite direction.

39. The combination with one or more computing heads, of controlling mechanism for governing the state of said computing heads, a typewriter carriage, means for actuatin said controlling mechanism in one direction during the movement of said carriage in one direction, and additional means, including an automatic reversing device, to cooperate with parts of said actuating means for actuating said controlling mechanism in the opposite direction during the movement of said carriage in the opposite direction.

40. The combination with one or more computing heads, of controlling mechanism for governing the state of said computing heads, a typewriter carriage, means for actuating said controlling mechanism in one direction during the movement of said carriage in one direction, means for actuating said controlling mechanism in the opposite direction during the movement of said carriage in the opposite direction, and means to cooperate with parts of said last-mentioned means for actuating said controlling mechanism in said last-mentioned direction independently of said carriage.

41. The combination with one or more computing heads, of controlling mechanism for governing the state of said computing heads, means for reciprocating said controlling meclnursm and rotating said controlling mechanism in one direction, and means for reciprocating said controlling mechanism and concomitantly reversing the direction of rotation of said controlling mechanism.

42. The combination with one or more computing heads, of controlling mechanism for governing the state of said computing heads, a source of power, a cam, connections between said cam and said source of power,

connections between said cam and said controlling mechanism adapted to cause a reciprocation of said controlling mechanism at a rotation of said cam, and connections between said controlling mechanism and said cam adapted to cause a rotation of said controlling mechanism.

43. The combination with one or more computing heads, of controlling mechanism for governing the state of said computing heads, a source of power, a cam, connections between said cam and said source of power, connections between said cam and said controlling mechanism adapted to cause a reciprocation of said controlling mechanism at a rotation of said cam, and connections between said controlling mechanism and said cam adapted to cause a rotation of said controlling mechanism; the relative arrangement of said cam and said first-mentioned connections being such that the rotation of said controlling mechanism will occur intermediate the strokes of reciprocation of said controlling mechanism.

44.. The combination with one or more computing heads, of controlling mechan sm for governing the state of said computing heads, a source of power, a shaft, means for connecting said shaft in driving relation with said source of power, a cam secured to said shaft for reciprocating said controlling mechanism, and connections between said shaft and said controlling mechanism for rotating said controlling mechanism, including :1 Geneva drive, whereby a single rotation of said shaft will cause a partial rotation of said controlling mechanism.

45. The combination with one or more computing heads, of a controlling mechan sm for governing the state of said comuting heads, said controlling mechanism including a shaft and a plurality of tappets arranged around said shaft, said tappets being capable of producing various effects, a source of power, a shaft connectible to said source of power, a cam on said secondmentioned shaft, connections between said cam and said first-mentioned haft, whereby a rotation of said second-mentioned shaft will reciprocate said first-mentioned shaft, and connections between said second-mentioned shaft and said first-mentioned shaft, whereby a single rotation of said second mentioned shaft will cause a partial rotat1on of said first-mentioned shaft.

46. The combination with one or more computing heads, of a controlling mechanism for governing the state of said com puting heads, said controlling mechanism including a shaft and a plurality of tappets arranged around said shaft, said tappets being capable of producing various efi'ects, a source of power, a shaft connectibl to said source of power, a cam on said secondmentioned shaft, connections between said cam and said first-mentioned shaft, whereby a rotation of said second-mentioned shaft will reciprocate said first-mentioned shaft, connections between said second-mentioned shaft and said first-mentioned shaft, whereby a single rotation of said second-mentioned shaft will cause a partial rotation of said first-mentioned shaft; said last-mentioned connections including a reversible drive, and means for reversing the direction of drive from said second-mentioned shaft to said first-mentioned shaft.

47. The combination with one or more computing heads, of a controlling mechanism for governing the state of said computing heads, said controlling mechanism includin a shaft and a plurality of tappets arrange around said shaft, said tappets being capable of producing various effects, a source of power, a shaft eonnectible to said source of power, a cam on said second-mentioned shaft, connections between said cam and said firstmentioned shaft, whereby a rotation of said second-mentioned shaft will reciprocate said first-mentioned shaft, and connections between said second-mentioned shaft and said first-mentioned shaft, including a Geneva drive to enable a single rotation of said secend-mentioned shaft to cause a partial'rotation of said first-mentioned shaft.

48. The combination with one or more computing heads, of controllin mechanism for governing the state of said computing heads, said controlling mechanism including a control shaft, a plurality of tappets arranged around said shaft and adapted to be brought in play successively by the successive movements of said shaft, a rock shaft, connections between said rock shaft and said control shaft, acam shaft, a cam on said cam shaft, connections between said cam and said rock shaft, whereb the rotation of said cam will rock said rocif shaft, a pin carried by said cam shaft, a Geneva gear adapted to be driven by said pin, a shaft driven by said Geneva gear, a pair of gears loosely mounted on said last-mentioned shafts a clutch splined on said last-mentioned shaft and ada ted to connect either of said ears with saic shaft, and a bevel gear secure to said control shaft and meshing with both of said first-mentioned bevel gears.

49. The combination with one or more computing heads, of controllin mechanism for governing the state of sai computing heads, said controlling mechanism including a control shaft, a plurality of tappcts arranged around said shaft and adapted to be brought in play successively by the successive movements of said shaft, a rock shaft, connections between said rock shaft and said control shaft, a cam shaft, a cam on said cam shaft, connections between said cam and said rock shaft, whereby the rotation of said cam will rock said rock shaft, :1 pin carried by said cam shaft, a Geneva gear adapted to be driven by said pin, a shaft driven by said Geneva gear, a pair of gears loosely mounted on said last-mentioned shaft, a clutch splined on said last-mentioned shaft and adapted to connect either of said gears with said shaft, a bevel gear secured to said control shaft and meshing with both of said first-mentioned bevel gears, a source of power, a clutch connecting said cam and said cam shaft with said source of ower,.and means for bringing said second mentioned clutch into action. i

50. The combination with one or more computing heads, of controllin mechanism for governing the state of sai computing heads, said controlling mechanismincluding a control shaft, a plurality of tappets arranged around said shaft and adapted to be brought in play successively by the successive movements of said shaft, a rock shaft, connections between said rock shaft and said control shaft, a cam shaft, a cam on said cam shaft, connections between said cam and said rock shaft, whereby the rotation of said cam will rock said rock shaft, a pin carried by said cam shaft, 2. Genevalgear adapted to be driven by said pin, a shaft driven by said Geneva gear, a pair of gears loosely mounted on said last-mentioned shaft, a clutch splined on said last-mentioned shaft and adapted to connect either of saidgears with said shaft, a bevel gear se cured to said control shaft and meshing with both of said first-mentioned bevel gears, a source of power, a clutch connecting said cam and said cam shaft with said source of power, and a key for concomitantly bringing said second-mentioned clutch into action and shifting said first-mentioned clutch.

51. The combination with one or more computing heads, of contrnllin mechanism for governing the state of sai computing heads, said controlling mechanism including a control shaft, a plurality of tappets arranged around said shaft and adapted to be brought in play successively by the successive movements of said shaft, a rock shaft, connections between said rock shaft and said control shaft, a cam shaft, a cam on said cam shaft, connections between said cam and said rock shaft, whereby the rotation of said cam will rock said rock shaft, a pin carried by said cam shaft, a Geneva gear adapted to be driven by said pin, a shaft driven by said Geneva gear, a pair of gears loosely mounted on said last-mentioned shaft, a clutch splined on said last-mentioned shaft and adapted to connect either of said gears with said shaft, :1 bevel car secured to said control shaft and meshmg with both of said iirstmentioned bevel gears, a source of power, a clutch connecting said cam and said cam shaft with said source of power, a typewriter carriage, and conneclions actuated by said typewriter carriage for bringing said second-mentioned clutch into action and concomitantly shifting said first-mentioned clutch.

52. The combination with one or more computing heads, of controlling mechanism for governing the state of said computing heads, said controlling mechanism including a control shaft, a plurality of tappets arranged around said shaft and adapted to be brought in play successively by the successive movements of said shaft, a rock shaft, connections between said rock shaft and said control shaft, a cam shaft, a cam on said cam shaft, connections between said cam and said rock shaft, whereby the rotation of said cam will rock said rock shaft, a pin carried by said cam shaft, a Geneva gear adapted to be driven by said pin, a shaft driven by said Geneva gear, a pair of gears loosely mounted on said last-mentioned shaft, a clutch splined on said last-mentioned shaft and adapted to connect either of said gears with said shaft, a bevel gear secured to said control shaft and meshing with both of said first-mentioned bevel gears, a source of power, a clutch connecting said cam and said cam shaft with said source of power, a typewriter carriage, and connections actuated by said typewriter carriage for bringing said second-mentioned clutch into action and concomitantly shifting said first-mentioned clutch, said last-mentioned connections including a trip permitting the movement of said carriage in one direction without operating said last-mentioned connections.

53. The combination with one or more computing heads, of controllin mechanism for governing the state of saidco-mputing heads, means for driving said controlling mechanism including a shiftable clutch, clutch-shifting mechanism, and means for concomitantly bringing said driving means into action and setting said clutch-shifting mechanism so as to be automatically operated by a part of said driving means to shift said clutch.

54. The combination with one or more computing heads, of controlling mechanism for governing the state of said computing heads, said controlling mechanism includin a shaft and tappets arranged around said shaft to be brought in play successively by the successive movements of said shaft, a gear carried by said shaft, a pair of loosely mounted gears meshing with said first-mew tioned gear, a clutch or driving the members of said pair of gears in opposite directions, and means for shifting said clutch.

55. The combination with one or more computing heads, of controlling mechanism for governing the state of said computing heads, said controlling mechanism including a shaft and tappets arranged around said shaft to be brought in play successively by the successive movements of said shaft, a

gear carried by said shaft, a pair of loosely mounted gears meshin with said first-mentioned gear, a clutch For driving the members of said pair of gears in opposite directions, and a reverse key lever for shifting said clutch.

56. The combination with one or more computing heads, of controllin mechanism for governing the state of sai computing heads, said controlling mechanism including a shaft and tappets arranged around said shaft to be brought in pla successively by the successive movements 0 said shaft, :1 gear carried by said shaft, a pair of loosely mounted gears meshing with said first-mentioned gear, a clutch for drivingthe members 0 said pair of gears in op osite directions, a typewriter carriage, a p urality of stops carried by said carriage, and connections between said stops and said clutch, whereby the movement of said carriage may shift said clutch.

57. The combination with one or more computing heads, of controllin mechanism for governing the state of sai com uting heads, said controlling mechanism inc uding a shaft and tappets arranged around said shaft to be brought in play successively by the successive movements of said shaft, 9. gear carried by said shaft, a pair of loosely mounted gears meshin with said first-mentioned gear, a clutch or driving the members of said pair of gears in opposite directions, a typewriter carriage, a plurality of stops carried by said carriage, and connections between said stops and said clutch, whereby the movement of said carriage may shift said clutch; said connections including a trip permitting a movement of said carriage in one direction without affecting said connections.

58. The combination with one or more computing heads, of a controllin mechanism for governing the state of sai computing heads, means for shifting said controlling mechanism, a source of power, and a clutch for connecting said means with said source of power, comprising a star wheel, a latch, and a spring normally tending to draw said latch into driving connection with said star wheel.

59. The combination with one or more omputing heads, of a controlling mechanism for governing the state of said computing heads, means for shifting said controlling mechanism, a source of power, a clutch for connecting said means with said source of power, comprising a star wheel, a latch, and a spring normally tending to draw said latch into driving connection with said star wheel, and a disconncctor for manipulating said latch after a single revolution of said clutch from engagement with said star wheel.

60. The combination with one or more computing heads, of a controlling mechanism for governing the state of said computing heads, means for shifting said controlling mechanism, a source of power, a clutch for connecting said means with said source of power, comprising a star wheel, a latch, and a spring normally tending to draw said latch into driving connection with said star wheel, a disconnector for manipulating said latch after a Sliifl'ii revolir tion of said clutch from engagement with said star wheel, and means for disconnecting said disconnector from said latch.

61. The combination with one or more computing heads, of a controlling mechanism for governing the state of said computing heads, driving mechanism rotating said controllin mechanism, shifting mechanism for changing the direction of rotation of said controlling mechanism by said driving mechanism, an actuator for manipulating said shifting mechanism, and means for reciprocating said controlling mechanism ad pted to actuate said actuator.

62. The combination with one or more computing heads, of a controlling mecha nism for governing the state of said computing heads, driving mechanism rotating said controlling mechanism, shifting mechanism for chari ing the direction of rotation of said controlling mechanism by said driving mechanism, an actuator for manipulat- .ing said shifting mechanism, means for reciprocating said controlling mechanism adapted to actuate said actuator, said actuator being normally out of cooperative ent gagement with said shifting mechanism, and

means for bringing said actuator into cooperative relation with said shifting mecha nism.

63. The combination with one or more computing heads, of controlling mechanism for said computing heads, said controlling mechanism embodying one or more holders having a plurality of positions corresponding to different steps in the operation of the controlling mechanism, tappets in certain of said positions, and an indicator having numerals to correspond with each of said post tions.

64. The combination with one or more computing heads, of controlling mechanism for governing the state of said computing heads, a rock shaft for actuating said controlling mechanism, an actuator SPlllltll on said rock shaft. gearing for actuating said controlling mechanism, shifting means op erable by said actuator at the rocking oi said rock shaft to re erse the drive of said controlling mechanism by Said gearing. r nd means for sliding said actuatinalong said rock shaft.

(35. The combination with lypewriting mechanism for writing a series of columns ol figures, of computing mechanism for computing said series of columns of figures, including a plurality of computing heads, and automatic mechanism comprising a part adapted to more a step at the beginning of each com mting column for controlling the slate of said conniuting heads.

tit 'lhe combination with a computing head. of a clutch for determining the state of said computing head, a setter for shifting said clutch in one direction, a series of tap 7r pets successively and individually operative in alternation with the setting operations of said setter to shift said clutch in the oppo site direction, a source of power and means for connecting said source of power so as to actuate said setter and said tappets.

67. The combination with a computing head, of a tvpew iter carriage, a clutch con trolling the state of said computing head, a setter for shifting said clutch in one direction, tappets successively and individually opera ive to shift said clutch in the opposite direction, said setter being efiective and inefl'ective in alternation with individual members of said tappets, and means controlling the movements of said setter and said tappets from said carriage.

G8. The combination with a computing mechanism, of controlling means for governing the state of said computing mechanism, a normally disconnected source of power for driving said controlling means, a traveling carriage, and means for enabling the connection of Said controlling means wi h said source of power at predetermined points in the travel of said carriage.

69. The. combination with a computing mechanism, of controlling means comprising a sequence of members for governing the state of said computing mechanism according to a predetermined sequence, acarriage, connections enabling said carriage to control the actuation of said controlling means according to the position of said carriage, and means independent of said car- 1 l0 riage for controlling the actuation of said controlling means independent of the position of said carriage.

70. The combination with a computing mechanism, of controlling means for governing the state of said computing mechanism according to a predetermined sequence, means for dri ing Said controlling means in n certain direction, means. including a reversing devi e, for driving said controlling means in h opposite direction to bring it back t-i normal starting position, and means. including and subject to control by :1 single operating key. to cooperate with part of said last-mentioned driving means [or dri\ ing S'lltl controlling means in a sin gle step in said reverse direction.

Tl The combination with a typewriting mechanism including a typewriter carriage, for writing a series of columns of figures, of 

